connecting components in controller

commandbus changing state when scheduling commands
added some tests

DRAM/testing/Utils_test.cpp

@@ -0,0 +1,76 @@
+/*
+ * Utils_test.cpp
+ *
+ *  Created on: Mar 14, 2014
+ *      Author: jonny
+ */
+
+#include <gtest/gtest.h>
+#include "core/utils/Utils.h"
+#include "core/utils/RingBuffer.h"
+
+//using namespace testing;
+
+namespace controller {
+
+TEST(UtilsTest, clkAlignWorks)
+{
+	sc_time clk(6, SC_NS);
+	sc_time aligned = 2* clk;
+	sc_time not_aligned = 2.5*clk;
+
+	EXPECT_EQ(aligned, clkAlign(aligned, clk, Alignment::UP));
+	EXPECT_EQ(aligned, clkAlign(aligned, clk, Alignment::DOWN));
+	EXPECT_EQ(aligned+clk, clkAlign(not_aligned, clk, Alignment::UP));
+	EXPECT_EQ(aligned+clk, clkAlign(not_aligned, clk));
+	EXPECT_EQ(aligned, clkAlign(not_aligned, clk, Alignment::DOWN));
+}
+
+TEST(UtilsTest, isClkAlignedWorks)
+{
+	sc_time clk(6, SC_NS);
+	sc_time aligned = 2*clk;
+	sc_time not_aligned = 2.5 * clk;
+
+	EXPECT_TRUE(isClkAligned(aligned, clk));
+	EXPECT_FALSE(isClkAligned(not_aligned, clk));
+}
+
+TEST(UtilsTest, delayByConstraintWorks)
+{
+	sc_time start(10, SC_NS);
+	sc_time previous(8, SC_NS);
+	sc_time constraint(4, SC_NS);
+
+	EXPECT_EQ(sc_time(2, SC_NS), delayByConstraint(previous, start, constraint));
+	EXPECT_EQ(sc_time(4, SC_NS), delayByConstraint(previous, sc_time(8, SC_NS), constraint));
+	EXPECT_EQ(sc_time(6, SC_NS), delayByConstraint(previous, sc_time(6, SC_NS), constraint));
+	EXPECT_EQ(sc_time(0, SC_NS), delayByConstraint(previous, sc_time(12, SC_NS), constraint));
+	EXPECT_EQ(sc_time(0, SC_NS), delayByConstraint(previous, sc_time(14, SC_NS), constraint));
+}
+
+TEST(UtilsTest, RingBufferWorks)
+{
+	RingBuffer<int> buffer(4);
+	EXPECT_TRUE(buffer.isEmpty());
+	EXPECT_EQ(0, buffer.getSize());
+	EXPECT_DEATH(buffer.get(0), ".*");
+	EXPECT_FALSE(buffer.isFull());
+	buffer.put(3);
+	EXPECT_EQ(1, buffer.getSize());
+	EXPECT_FALSE(buffer.isFull());
+	buffer.put(5);
+	buffer.put(4);
+	EXPECT_EQ(4, buffer.getNewest());
+	EXPECT_EQ(3, buffer.getOldest());
+	EXPECT_FALSE(buffer.isFull());
+	buffer.put(9);
+	buffer.put(10);
+	EXPECT_EQ(10, buffer.getNewest());
+	EXPECT_EQ(5, buffer.getOldest());
+	EXPECT_EQ(9, buffer.get(2));
+	EXPECT_TRUE(buffer.isFull());
+}
+
+} /* namespace controller */
+